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package com.sun.jersey.core.impl.provider.entity;
import com.sun.jersey.core.provider.AbstractMessageReaderWriterProvider;
import com.sun.jersey.spi.inject.Injectable;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import javax.ws.rs.Consumes;
import javax.ws.rs.Produces;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response.Status;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.xml.sax.SAXException;
/**
*
* @author Paul.Sandoz@Sun.Com
*/
@Produces({"application/xml", "text/xml", "*/*"})
@Consumes({"application/xml", "text/xml", "*/*"})
public final class DocumentProvider extends AbstractMessageReaderWriterProvider<Document> {
// Delay construction of factory
private final Injectable<DocumentBuilderFactory> dbf;
// Delay construction of factory
private final Injectable<TransformerFactory> tf;
public DocumentProvider(@Context Injectable<DocumentBuilderFactory> dbf,
@Context Injectable<TransformerFactory> tf) {
this.dbf = dbf;
this.tf = tf;
}
public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return Document.class == type;
}
public Document readFrom(
Class<Document> type,
Type genericType,
Annotation annotations[],
MediaType mediaType,
MultivaluedMap<String, String> httpHeaders,
InputStream entityStream) throws IOException {
try {
return dbf.getValue().newDocumentBuilder().parse(entityStream);
} catch (SAXException ex) {
throw new WebApplicationException(ex, Status.BAD_REQUEST);
} catch (ParserConfigurationException ex) {
throw new WebApplicationException(ex, Status.INTERNAL_SERVER_ERROR);
}
}
public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) {
return Document.class.isAssignableFrom(type);
}
public void writeTo(
Document t,
Class<?> type,
Type genericType,
Annotation annotations[],
MediaType mediaType,
MultivaluedMap<String, Object> httpHeaders,
OutputStream entityStream) throws IOException {
try {
StreamResult sr = new StreamResult(entityStream);
tf.getValue().newTransformer().transform(new DOMSource(t), sr);
} catch (TransformerException ex) {
throw new WebApplicationException(ex, Status.INTERNAL_SERVER_ERROR);
}
}
}